Answer:
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Step-by-step explanation:
There are many, many pros and cons to patriotism. I will provide three of each, because I assume you are on a schedule.
Pros-
Feeling of community
May promote solidarity
Nationalism may help to protect a country
Cons-
May lead to the social exclusion of minorities
Some people may take it too far(Exhibit A being January 6th, 2021)
May lead to resentment towards other countries
Like I said, there are many more, but I hope it helps.